SUMMING AMPLIFIER (1)

The summing amplifier multiplies each input voltage by the gain of that input and then adds them together to give the output voltage. Input voltages are positive and the summing amplifier takes account of this. Input voltages are fixed DC value. Vout= - [ Rf/(R1 )*V1+Rf/(R2)*V2] Vout= -(2mv+5mv) = -7mv From the results obtained using MultiSim software, the output voltage is -7mv as obtained analytically.